Ionic 4 - Getting [ERROR] ng has unexpectedly closed (exit code 1) when I run "ionic server"

I am struggling in this error when I try the first run on an Ionic4 project.

ng run app:serve --host=0.0.0.0 --port=8100

[ERROR] ng has unexpectedly closed (exit code 1).

The Ionic CLI will exit. Please check any output above for error details.​

I'm using Linux Elementary OS (a nice distro that came from Ubuntu).

I tried to run a ionic3 project and it ran successfully.

When I run ionic serve --verbose I get this message



I already tried many things, "npm cache clean", reinstall node, reinstall ionic, start/stop nodejs process. But without any success. As I am not finding anyone with the exactly same problem as mine I am asking you guys.

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